Wireless powered communication (WPC) involves the integration of energy harvesting and data transmission. This allows devices to communicate without constant battery replacements or wired power sources. Reconfigurable intelligent surfaces (RISs) can dynamically manipulate radio signals. In this paper, we explore the use of active elements to mitigate double-fading challenges inherent in RIS-aided links. We enhance the reliability performance for an energy-constrained user by combining active RIS and WPC. The theoretical closed-form analysis, which includes transmission rate, harvested energy, and outage probability, provides valuable insights that inform parameter selection.

翻译：无线供能通信（WPC）整合了能量收集与数据传输技术，使设备无需频繁更换电池或有线电源即可实现通信。可重构智能表面（RIS）能够动态操控无线电信号。本文探索利用有源元件来缓解RIS辅助链路中固有的双重衰落挑战，通过结合有源RIS与WPC技术，提升能量受限用户的可靠性性能。包含传输速率、收集能量及中断概率的理论闭式分析，为参数选择提供了重要指导依据。